Comparing 1 model
| Anthropic: Claude Opus 5.5 | |
|---|---|
| Maker | Anthropic |
| Context window | 1M |
| Max output | 128K |
| Input / 1M | $8 |
| Output / 1M | $40 |
| Cache read / 1M | $0.4 |
| Cache write / 1M | $10 |
| 1M in + 1M out | $48 |
| Takes | text, image, file |
| Returns | text |
| Tools | yes |
| Reasoning | always on · max, xhigh, high, medium, low |
| Open weights | no |
| Released | 2026-09-22 |
| Knowledge cutoff | — |
| Retires | — |